Taking into account 30 trading days horizon, Eni SpA is expected to generate 0.46 times more return on investment than Precious. However, Eni SpA is 2.19 times less risky than Precious. It trades about -0.37 of its potential returns per unit of risk. Precious Shipping Public Ltd. is currently generating about -0.21 per unit of risk. If you would invest 4,482 in Eni SpA on April 26, 2012 and sell it today you would lose (546) from holding Eni SpA or give up 12.18% of portfolio value over 30 days.
Diversification
Significant diversification
Overlapping area represents amount of risk that can be diversified away by holding Eni SpA and Precious Shipping Public Co. L in the same portfolio (assuming nothing else is changed)